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Oil from saildrive

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samuel View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote samuel Quote  Post ReplyReply Direct Link To This Post Topic: Oil from saildrive
    Posted: 02 December 2011 at 17:44
Here is a picture of the oil drained from my sail drive after 1 season's use (the black bits came from surroundings not the saildrive). I was suprised at the colour. I change it every year & use 15W40 oil.
When I dipped my finger & thumb in it & then rubbed my 2 fingers together the slippery surface seemed to disappear in a quarter of the rubs that it lasted with fresh oil. This suggest a severe oil breakdown. The gearbox stood idle for a month before draining & there were no milky streaks when I drained it.I would have expected this if water had leaked in. Does any one have experience of what caused this.
I suspect the best action is to change the saildrive seals. Can anyone direct me to a website with pictorial views of how to change the seals. I have visited some forums which suggest problems getting the shaft out & apparently one has to adjust shims etc
So any help gratefully recieved
 
Daydream Believer- Hanse 311- No GBR9917T- Bradwell Essex
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Peter-Blake View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Peter-Blake Quote  Post ReplyReply Direct Link To This Post Posted: 02 December 2011 at 18:02
This looks definatly like water in your saildrive oil.

Usually the problem comes from the simmering (saildrive seal) on the saildrive.

BTW:
As i do not know what kind of motor you have you also may check the correct oil. For my yanmar 3ym30 SD20 saildrive i have to use SAE 80W90.
But on other brands it is diffrent


Blake 370
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samuel View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote samuel Quote  Post ReplyReply Direct Link To This Post Posted: 02 December 2011 at 18:43
Peter
I have a Volvo MD 20 20D
The engine oil & the saildrive oil is the same - 15 w 40
I use a premium grade as I am told better grades cause bore polishing & subsequent seizing
Some forums report Volvo have changed their view on the grade, but I am following the instruction book that came with the engine
Unfortunately the instructions do not say how to change the seal
Daydream Believer- Hanse 311- No GBR9917T- Bradwell Essex
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JohnA View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote JohnA Quote  Post ReplyReply Direct Link To This Post Posted: 03 December 2011 at 15:50
I think that it is without doubt that water has got mixed with the oil. Replacing the seals should do the trick.

Hanse 320 #464 'Discovery'
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echoofwight View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote echoofwight Quote  Post ReplyReply Direct Link To This Post Posted: 05 December 2011 at 11:18
Hi, I am sure you have water in the oil,  quite a common problem,  as has been suggested earlier the seals need to be changed.  Not a big job once the boat is out of the water.  What engine do you have?
Steve. Hanse 341 Echo of Wight, . Deep draft and rudder, white hull, Single aft cabin. Raymarine instruments. Furuno radar. Garmin AIS. Wheel Steering,   Portsmouth.
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samuel View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote samuel Quote  Post ReplyReply Direct Link To This Post Posted: 05 December 2011 at 12:37
Echoofwight - see above entries re engine
What I need is a website that actually tells me HOW
I am sure I can do it Ok- but I would like to run through it before I end up with bits all over the ground & no way of putting it all back together
Eventually every owner with a sail drive needs to address this problem-  (unless they sell their boats before they wear out)
There must be a way of getting a Volvo WORKSHOP manual, as opposed tothe instruction manual, for free off the web.
But where?
Daydream Believer- Hanse 311- No GBR9917T- Bradwell Essex
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Ian Robinson View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ian Robinson Quote  Post ReplyReply Direct Link To This Post Posted: 05 December 2011 at 12:54
Hello Samual,
 
If you have a Yanmar engine changing the seals is not difficult.  With the prop off it is only the two large allen screw headed machine screws that hold the final shaft in.  With a bit of care and a thin bladed screw driver/chisel the end plate and final shaft eases out.  However, I suspect you will find that the shaft is worn too and fitting new seals (2 off) will not cure the problem.  Your Yanmar dealer will be able to sleeve the shaft.  Last month I paid about 130 to have my saildrive's shaft to be sleeved and new seals fitted including new oil and end plate O ring.   
 
Regards
 
Ian
Ostara a 370#88
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echoofwight View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote echoofwight Quote  Post ReplyReply Direct Link To This Post Posted: 05 December 2011 at 13:55
Steve. Hanse 341 Echo of Wight, . Deep draft and rudder, white hull, Single aft cabin. Raymarine instruments. Furuno radar. Garmin AIS. Wheel Steering,   Portsmouth.
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CharlesP View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote CharlesP Quote  Post ReplyReply Direct Link To This Post Posted: 05 December 2011 at 17:26
Samuel - I am curious as to whether this emulsified oil showed up during the season when you checked oil level with the dipstick periodically, or is this not possible with Volvo.

Charles
'MERIDIAN LADY'

320 Nr 536 2010

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samuel View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote samuel Quote  Post ReplyReply Direct Link To This Post Posted: 06 December 2011 at 07:04
CharlesP
Until I drained the oil I had no idea of its condition
Oil on the dipstick showed no indication- possibly because the amount was minimal & very little oil actually adheres to the dipstick
I certainly did not see any signs - such as white streaks etc
Daydream Believer- Hanse 311- No GBR9917T- Bradwell Essex
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